Package jmri.server.json

Class JsonClientHandler

java.lang.Object

jmri.server.json.JsonClientHandler

public class JsonClientHandler
extends Object

Handler for JSON messages from a TCP socket or WebSocket client.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	HELLO_MSG	When used as a parameter to onMessage(java.lang.String), will cause a "hello" message to be sent to the client.

Constructor Summary

Constructors

Constructor	Description
JsonClientHandler(JsonConnection connection)

Method Summary

Modifier and Type	Method	Description
protected HashMap<String,HashSet<JsonSocketService<?>>>	getServices()
void	onClose()
void	onMessage(com.fasterxml.jackson.databind.JsonNode root)	Process a JSON node and handle appropriately.
void	onMessage(String string)	Process a JSON string and handle appropriately.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

HELLO_MSG

public static final String HELLO_MSG

When used as a parameter to onMessage(java.lang.String), will cause a "hello" message to be sent to the client.

See Also:

• Constant Field Values

Constructor Details

JsonClientHandler

public JsonClientHandler(JsonConnection connection)

Method Details

onClose

public void onClose()

onMessage

public void onMessage(String string)
               throws IOException

Process a JSON string and handle appropriately.

See jmri.server.json for expected JSON objects.

Parameters:

string - the message

Throws:

IOException - if communications with the client is broken

See Also:

• onMessage(JsonNode)

onMessage

public void onMessage(com.fasterxml.jackson.databind.JsonNode root)
               throws IOException

Process a JSON node and handle appropriately.

See jmri.server.json for expected JSON objects.

Parameters:

root - the JSON node.

Throws:

IOException - if communications with the client is broken

See Also:

• onMessage(java.lang.String)

getServices

protected HashMap<String,HashSet<JsonSocketService<?>>> getServices()